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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef NET_PROXY_PROXY_RESOLVER_WINHTTP_H_
      6 #define NET_PROXY_PROXY_RESOLVER_WINHTTP_H_
      7 
      8 #include "base/compiler_specific.h"
      9 #include "net/proxy/proxy_resolver.h"
     10 #include "url/gurl.h"
     11 
     12 typedef void* HINTERNET;  // From winhttp.h
     13 
     14 namespace net {
     15 
     16 // An implementation of ProxyResolver that uses WinHTTP and the system
     17 // proxy settings.
     18 class NET_EXPORT_PRIVATE ProxyResolverWinHttp : public ProxyResolver {
     19  public:
     20   ProxyResolverWinHttp();
     21   virtual ~ProxyResolverWinHttp();
     22 
     23   // ProxyResolver implementation:
     24   virtual int GetProxyForURL(const GURL& url,
     25                              ProxyInfo* results,
     26                              const net::CompletionCallback& /*callback*/,
     27                              RequestHandle* /*request*/,
     28                              const BoundNetLog& /*net_log*/) OVERRIDE;
     29   virtual void CancelRequest(RequestHandle request) OVERRIDE;
     30 
     31   virtual LoadState GetLoadState(RequestHandle request) const OVERRIDE;
     32 
     33   virtual void CancelSetPacScript() OVERRIDE;
     34 
     35   virtual int SetPacScript(
     36       const scoped_refptr<ProxyResolverScriptData>& script_data,
     37       const net::CompletionCallback& /*callback*/) OVERRIDE;
     38 
     39  private:
     40   bool OpenWinHttpSession();
     41   void CloseWinHttpSession();
     42 
     43   // Proxy configuration is cached on the session handle.
     44   HINTERNET session_handle_;
     45 
     46   GURL pac_url_;
     47 
     48   DISALLOW_COPY_AND_ASSIGN(ProxyResolverWinHttp);
     49 };
     50 
     51 }  // namespace net
     52 
     53 #endif  // NET_PROXY_PROXY_RESOLVER_WINHTTP_H_
     54